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Implement Alley Discussion Forum

501 mower

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ted 492

11-12-2005 13:40:00

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I was wondering if anyone knows where to find a 14.5inch drive sheave for a 501 sickle bar mower? I currently have a 10.5 incher and cant get enough knife speed with my 841 tractor because it is so tall geared. We cut pretty heavy hay in this area and i wanted to try this before i had to upgrade tractors or mowers. Has anyone ever fooled around with sheaves on one of these? Thanks!!

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paul

11-13-2005 22:08:26

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Re: 501 mower in reply to ted 492, 11-12-2005 13:40:00

I had an old 501 that had a lot of wear - 10" sheave, on a Ford 960. Got to where I was running in 3rd for alfalfa, 2nd for good grass, and 1st for tough grass or clover.

Got a different 601, got a new sickle in it, got a new belt, and the guards on this mower are in fairly good shape.

I mowed pretty much everything in 4th geear the past 2 years.....

So, I don't know about changing the sheaves - would be big $$$$$$$ - & I understand you have a 4 speed not a 5.

But, you might make sure the rest of your mower is in good shape, the new belt and sickle bar probably saved their cost in fuel alone....

--->Paul

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ted 492

11-14-2005 06:47:36

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Re: 501 mower in reply to paul, 11-13-2005 22:08:26

I put on new sections, guards, hold downs, and the belt is pretty good. I do have a 4 speed.

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paul

11-14-2005 08:15:52

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Re: 501 mower in reply to ted 492, 11-14-2005 06:47:36

Figured so, but noticed no one else had any ideas either, so trying to get a conversation going for you. :)

You would need to cruise the junkyards for a bigger sheave, if available you can't afford a new one....

--->Paul

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ted 492

11-14-2005 17:25:41

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Re: 501 mower in reply to paul, 11-14-2005 08:15:52

I got a price on a new sheave and it was way more than what i paid for the mower. If only i could find a hub that matched the shaft splines and i could make my own pulley..... .does anyone know are these splines something special or what????the problem i see is tightening the pulley on the shaft also adjusts the preload on the pto carrier bearings.nothing can be easy, can it?

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paul

11-14-2005 20:38:06

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Re: 501 mower in reply to ted 492, 11-14-2005 17:25:41

I hear ya there! :) I spent 2 (sunny, dry, beautiful....) days fixing on the combine plus parts runs all because of a 1/2 moon key that wallowed into a cast pully last month.....

So, it doesn't cut when in 3rd gear, with all the new parts? Really surprising, would think it should go for you, all the mowers I've seen have that 10" pulley on them, guess there were 3 different sizes, eh?

--->Paul

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ted 492

11-14-2005 21:25:18

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Re: 501 mower in reply to paul, 11-14-2005 20:38:06

yeah i think they had a 10.5,12 and 14.5 inch. being a grass seed farmer i've cut alot of grass with a swather but they have adjustable guards and a real high sickle speed so this 501 really drives me nuts.sounds like maybe 10" was the most common pulley.I wonder if i should try a moco-maybe a reel would be just the ticket?or maybe i should just by a slower tractor?decisions,decisions..... ..

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